Compressed water is overspread on Earth at depth and in the extra-terrestrial space, both interstellar and on outer planets and moons. Under the extreme p-T conditions experienced in these celestial bodies water displays an incredibly rich phase diagram, anomalous dynamical properties, proton conductivity, and unusual affinity for both ionic and gaseous species. In this talk I will review our recent experimental results on, pure1,2, salt-doped (LiCl, NaCl, KCl)3,4,5, and gas (H2, CH4)6- “stuffed” ices under the extreme conditions experienced in the ice bodies of our solar system. 

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[4] L.E. Bove, R. Gaal, et al., PNAS 112, 8216 (2015).

[5] S. Klotz, L.E. Bove, et al., Nat. Sci. Rep. 6, 32040 (2016).

[6] U.L. Ranieri, et al., Nat. Comm., submitted (2017).